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Sigma SD1 Merrill Review | 108 Data compared

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  • Avg. price: ~£620
  • Sensor size: APS-C
  • Lens mount: Sigma SA
  • Main camera pixel size: 5 µm
  • Weight: 790 g
  • Battery life (CIPA): 150 shots

Sigma SD1 Merrill review. Compare 108 technical specifications and user reviews to see how it ranks among cameras and if it is worth buying.

4.5

Overall score

What it is: An overall evaluation of the camera's quality, based on technical analyses and user reviews.

When it matters: When you need a quick reference to identify the best cameras on the market.

Score components:

90.0%

4.3

Technical Score

10.0%

6.6

User score

Poor
4.3

Technical Score

What it is: An assessment of the camera's technical performance, covering eight key areas: image quality, autofocus, video features, stabilization, lens compatibility, connectivity, battery, and design.

When it matters: When you want to compare cameras based on technical performance and available features.

Score components:

28.0%

6.2

Sensor & Image

25.0%

3.9

Photo Features

18.0%

2.2

Video & Audio

14.0%

5.0

Display & Design

8.0%

4.5

Battery & Power

7.0%

2.0

Connectivity & Storage

Poor
6.6

User score

What it is: A rating that combines user reviews and the total number of reviews received by the camera.

When it matters: When real-world owner satisfaction and review volume matter to your decision.

Score components:

70.0%

7.6

User reviews

30.0%

4.2

Popularity

User score:
United Kingdom
amazon
3.8
(12)
United States
Amazon_logo.png
3.8
(12)

(Reviews last updated: July 2026)

Good
  • 6.4
    Professional photography

    Score components:

    25.0%

    8.8

    Sensor size

    20.0%

    9.2

    Main camera megapixels

    20.0%

    1.0

    Dual card slots

    15.0%

    1.4

    N. of focus points

    10.0%

    10

    RAW photo capture

    10.0%

    10

    Phase-detection autofocus (photos)

  • 1.7
    Travel

    Score components:

    35.0%

    3.0

    Weight

    30.0%

    1.0

    Battery life (CIPA)

    20.0%

    1.0

    Sensor-shift stabilization

    15.0%

    1.0

    GPS

  • 3.3
    Beginners

    Score components:

    30.0%

    7.2

    Price

    20.0%

    3.0

    Weight

    20.0%

    1.0

    AF tracking

    20.0%

    1.0

    Battery life (CIPA)

    10.0%

    1.0

    Touchscreen

  • 8.1
    Landscape photography

    Score components:

    30.0%

    9.2

    Main camera megapixels

    25.0%

    8.8

    Sensor size

    20.0%

    9.7

    Main camera pixel size

    15.0%

    1.0

    Sensor-shift stabilization

    10.0%

    10

    RAW photo capture

  • 3.5
    Street photography

    Score components:

    30.0%

    3.0

    Weight

    25.0%

    4.0

    Thickness

    20.0%

    6.7

    AF low-light sensitivity

    15.0%

    1.0

    Sensor-shift stabilization

    10.0%

    1.0

    Eye detection AF (human)

  • 6.7
    Portraits

    Score components:

    30.0%

    8.8

    Sensor size

    25.0%

    9.7

    Main camera pixel size

    20.0%

    1.0

    Eye detection AF (human)

    15.0%

    9.2

    Main camera megapixels

    10.0%

    1.0

    Sensor-shift stabilization

  • 2.0
    Hiking

    Score components:

    30.0%

    3.0

    Weight

    25.0%

    1.0

    Battery life (CIPA)

    20.0%

    2.8

    Min operating temperature

    15.0%

    1.0

    Sensor-shift stabilization

    10.0%

    1.0

    GPS

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Best rankings

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Available: ranking among products currently available (including other versions of this product).
All: ranking among all products in the database.

Verdict

The Sigma SD1 Merrill is a specialized DSLR featuring a unique 46-megapixel APS-C Foveon X3 direct image sensor (resolving 4,800 x 3,200 pixels across three layers) and dual TRUE II image processing engines. Housed in a weather-resistant magnesium alloy body, it offers an 11-point twin-cross AF system, a pentaprism viewfinder with 98% coverage, and shutter speeds up to 1/8000 second. Its main pros include exceptional low-ISO image detail that rivals medium-format resolution, superb micro-contrast, and a robust build. However, the camera is hindered by extremely slow file writing speeds, poor high-ISO performance above 800, a lack of video or live view capabilities, and a short battery life of approximately 300–400 shots.

Technical Specifications of Sigma SD1 Merrill

Technical Score

What it is: An assessment of the camera's technical performance, covering eight key areas: image quality, autofocus, video features, stabilization, lens compatibility, connectivity, battery, and design.

When it matters: When you want to compare cameras based on technical performance and available features.

Score components:

28.0%

6.2

Sensor & Image

25.0%

3.9

Photo Features

18.0%

2.2

Video & Audio

14.0%

5.0

Display & Design

8.0%

4.5

Battery & Power

7.0%

2.0

Connectivity & Storage

4.3
Sigma SD1 Merrill has a technical score of 4.3 points, which is lower than 78.5% of cameras.
User score

What it is: A rating that combines user reviews and the total number of reviews received by the camera.

When it matters: When real-world owner satisfaction and review volume matter to your decision.

Score components:

70.0%

7.6

User reviews

30.0%

4.2

Popularity

User score:
United Kingdom
amazon
3.8
(12)
United States
Amazon_logo.png
3.8
(12)

(Reviews last updated: July 2026)

6.6
Sigma SD1 Merrill has a user score of 6.57 points, which is lower than 96.6% of cameras.
Popularity
What it is: An indicator based on the number of reviews received by the camera.
When it matters: When you want to see which cameras attract the most buyer attention and review activity.
4.2
Sigma SD1 Merrill has a popularity of 4.2 points, which is higher than 55.7% of products in this category.
Ratio quality/price

What it is: An indicator that combines the camera's overall rating with its cost.

When it matters: When you want to know how much overall quality you get for the price.

Score components:

60.0%

4.5

Overall score

40.0%

7.2

Price

5.3
Sigma SD1 Merrill has a quality-to-price ratio of 5.3 points, which is lower than 91.4% of products in this category.
Sensor size
What it is: The sensor format value describes the physical light-collecting area.
When it matters: When you shoot in more difficult lighting.

Importance: HIGH

Good value: Full frame or larger

APS-C
Sigma SD1 Merrill uses a sensor classified as APS-C; it is larger than the sensor in 57.4% of cameras and the same size as the sensor in 25.7% of cameras.
Main camera megapixels
What it is: The effective resolution of the camera sensor, measured in megapixels (MP). Higher megapixels can capture more detail.
When it matters: When you want high-resolution photos that allow more cropping or larger prints.

Importance: HIGH

Good value: At least 20 MP

46 MP
Sigma SD1 Merrill has a main camera resolution of 46 MP, which is higher than that of 95.7% of cameras and equal to that of 0.3% of cameras.
Foveon layered sensor.
Main camera pixel size
What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
When it matters: When you shoot in low light and want reduced noise in your photos.

Importance: HIGH

Good value: At least 3.5 µm

5 µm
Sigma SD1 Merrill has a main camera pixel size of 5 µm which is larger than in 82.9% of cameras and equal to the size in 0.1% of cameras.
Base ISO
What it is: The native ISO setting that delivers the sensor’s standard balance of image quality and dynamic range.
When it matters: When you want the best native image quality and compare cameras at their most optimal sensitivity setting.

Importance: LOW

200
Sigma SD1 Merrill has a base ISO of 200 which is higher than that of 84.9% of cameras and equal to that of 14.2% of cameras.
Max ISO
What it is: The ISO ceiling shows the highest sensor sensitivity available for darker scenes.
When it matters: When you shoot in more difficult lighting.

Importance: MEDIUM

Good value: At least ISO 25,600

6,400
Sigma SD1 Merrill reaches a maximum sensitivity of ISO 6,400, which is higher than that of 37.3% of cameras and equal to that of 16.2% of cameras.
Show more
Lens mount
What it is: The mechanical and electronic interface that determines which interchangeable lenses the camera can use.
When it matters: When lens availability, upgrade options, and long-term system compatibility are central to your buying decision.

Importance: LOW

Sigma SA
Built-in focus motor
What it is: Indicates whether the camera body includes an internal autofocus motor for driving compatible lenses.
When it matters: When you plan to use older or budget lenses that depend on the camera body for autofocus drive.

Importance: LOW

no
Sigma SD1 Merrill does not have a built-in focus motor. 11% of cameras have a built-in focus motor.
N. of focus points
What it is: The total number of selectable autofocus points available for positioning and tracking focus.
When it matters: When you want more flexibility in placing focus precisely or tracking subjects across the frame.

Importance: HIGH

Good value: At least 200 points

11
Sigma SD1 Merrill has 11 focus points, fewer than the number offered by 60.4% of cameras and equal to the number offered by 6.5% of cameras.
Phase-detection autofocus (photos)
What it is: Autofocus technology that measures phase differences to lock focus quickly and accurately for still photography.
When it matters: When you want faster and more reliable autofocus for still photos, especially with moving subjects.

Importance: HIGH

yes
Sigma SD1 Merrill supports phase-detection autofocus for photos. 37.3% of cameras support phase-detection autofocus for photos.
AF tracking
What it is: An autofocus mode that continuously follows a moving subject to keep it sharp during shooting.
When it matters: When your subjects move unpredictably and you need the camera to keep focus on them automatically.

Importance: MEDIUM

no
Sigma SD1 Merrill does not support AF tracking. 88.1% of cameras support this feature.
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Max video resolution
What it is: The highest video resolution the camera can record, defining the maximum level of captured image detail.
When it matters: When you care about recording the highest level of detail for cropping, editing, or future-proof video work.

Importance: HIGH

Good value: At least 3840 px

N/A
Video bitrate
What it is: The amount of video data recorded per second, which affects file size and potential recording quality.
When it matters: When you compare potential video quality and want fewer compression artifacts in demanding scenes.

Importance: MEDIUM

Good value: At least 200 Mbps

N/A
Video bit depth
What it is: The number of bits used per color channel in recorded video, affecting gradation smoothness and editing flexibility.
When it matters: When you color grade video and want smoother gradients with fewer banding issues.

Importance: MEDIUM

Good value: At least 10-bit

N/A
Video chroma subsampling
What it is: The color sampling format used in video recording, indicating how much color detail is retained relative to brightness detail.
When it matters: When color grading, keying, or serious post-production work is important in your video workflow.

Importance: LOW

N/A
Video codecs
What it is: The video compression formats the camera can use when recording, affecting compatibility, efficiency, and workflow.
When it matters: When compatibility, editing performance, and file efficiency matter in the way you handle video.

Importance: LOW

N/A
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Type
What it is: The camera type identifies the overall design, such as mirrorless, DSLR, compact, or bridge.
When it matters: When you want a camera style that matches how you shoot, carry, and swap lenses.

Importance: LOW

dslr
Weight
What it is: The total weight of the camera body, which affects comfort while carrying and shooting.
When it matters: When you carry the camera all day, travel often, or prefer a lighter setup.

Importance: MEDIUM

Good value: 500 g or less

790 g
Sigma SD1 Merrill weighs 790 g which is heavier than 89.2% of cameras.
Width
What it is: The width of the camera body, measured from side to side.
When it matters: When compact packing, grip comfort, or bag fit matters to you.

Importance: LOW

145.5 mm
Sigma SD1 Merrill has a width of 145.5 mm which is wider than 91.7% of cameras and equal to that of 0.1% of cameras.
Height
What it is: The height of the camera body, measured from top to bottom.
When it matters: When you care about how compact the camera feels in a bag or in hand.

Importance: LOW

113.5 mm
Sigma SD1 Merrill has a height of 113.5 mm which is taller than 94% of cameras and equal to that of 0.1% of cameras.
Thickness
What it is: The depth of the device profile, excluding the camera bump unless specified.
When it matters: When you prefer a sleek, slim profile that slides easily into tight pockets.

Importance: LOW

80 mm
Sigma SD1 Merrill has a thickness of 80 mm which is thicker than 77.3% of cameras and equal to that of 0.3% of cameras.
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Battery life (CIPA)
What it is: The official battery endurance estimate measured under CIPA test methodology, usually expressed in shots per charge.
When it matters: When you need realistic expectations for how many shots you can take before carrying a spare battery.

Importance: MEDIUM

Good value: At least 400 shots

150 shots
Sigma SD1 Merrill has a CIPA-rated battery life of 150 shots, which is shorter than that of 98.4% of cameras and equal to that of 0.5% of cameras.
Battery capacity
What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
When it matters: When you want a general idea of how large the battery is physically.

Importance: LOW

Good value: At least 1,500 mAh

1,600 mAh
Sigma SD1 Merrill has a battery capacity of 1,600 mAh which is larger than the batteries in 73.5% of cameras and equal to those in 1.6% of cameras.
Removable battery
What it is: Indicates whether the flight battery can be removed and swapped by the user.
When it matters: When you want to swap batteries quickly between flights.

Importance: LOW

yes
Sigma SD1 Merrill has a removable battery, and 98.7% of cameras include one.
USB Power Delivery (PD)
What it is: Support for the USB Power Delivery standard for higher-power charging or external power supply over USB-C.
When it matters: When you want faster USB-C charging or the ability to power the camera externally for longer sessions.

Importance: LOW

no
Sigma SD1 Merrill does not support USB Power Delivery. 10.1% of cameras support USB Power Delivery.
Wi-Fi connectivity
What it is: Indicates whether the camera has built-in Wi-Fi for image transfer, remote control, or network features.
When it matters: When you want to transfer photos wirelessly, control the camera from a phone, or use supported network workflows.

Importance: LOW

no
Sigma SD1 Merrill does not support Wi-Fi. 47.9% of cameras include this feature.
Wi-Fi version
What it is: The specific generation of Wi-Fi standards supported (e.g., Wi-Fi 6, Wi-Fi 7), determining maximum speed and efficiency.
When it matters: When you have a high-speed router and want faster downloads with less congestion.

Importance: LOW

N/A
Bluetooth connectivity
What it is: Indicates whether the camera supports Bluetooth for pairing, remote control, or file transfer.
When it matters: When you want quick wireless pairing with a phone, remote control, or location syncing.

Importance: LOW

no
Sigma SD1 Merrill does not have Bluetooth. 22.7% of cameras support Bluetooth.
Bluetooth version
What it is: The Bluetooth version supported by the camera for wireless pairing and low-power connections.
When it matters: When you want more efficient wireless pairing, better range, or newer Bluetooth features.

Importance: LOW

N/A
USB Type-C
What it is: A modern, reversible connector used for charging, data transfer, and sometimes audio or video output.
When it matters: When you want a reversible cable that handles charging, data, and accessories universally.

Importance: LOW

no
Sigma SD1 Merrill does not include USB Type-C. 14.6% of cameras use USB-C.
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Sigma SD1 Merrill vs the average camera

  • Phase-detect AF for photos
    Sigma SD1 Merrill supports phase-detection autofocus for photos, the average camera does not.
    What it is: Autofocus technology that measures phase differences to lock focus quickly and accurately for still photography.
    When it matters: When you want faster and more reliable autofocus for still photos, especially with moving subjects.

    Importance: HIGH

    Sigma SD1 Merrill supports phase-detection autofocus for photos, the average camera does not.
  • 29.8 MP higher resolution on the main camera
    Sigma SD1 Merrill has a higher main camera resolution than the average camera (46 MP vs 16.2 MP). The average camera has a main camera resolution of 16.2 MP.
    Foveon layered sensor.
    What it is: The effective resolution of the camera sensor, measured in megapixels (MP). Higher megapixels can capture more detail.
    When it matters: When you want high-resolution photos that allow more cropping or larger prints.

    Importance: HIGH

    Good value: At least 20 MP

    Sigma SD1 Merrill has a higher main camera resolution than the average camera (46 MP vs 16.2 MP). The average camera has a main camera resolution of 16.2 MP.46 MP vs 16.2 MP
  • 1.66 µm larger main-camera pixels
    Sigma SD1 Merrill has a higher main camera pixel size than the average camera (5 µm vs 3.34 µm). The average camera has a main camera pixel size of 3.34 µm.
    What it is: The physical size of individual pixels on the camera sensor, measured in micrometers. Larger pixels typically capture more light for better low-light performance.
    When it matters: When you shoot in low light and want reduced noise in your photos.

    Importance: HIGH

    Good value: At least 3.5 µm

    Sigma SD1 Merrill has a higher main camera pixel size than the average camera (5 µm vs 3.34 µm). The average camera has a main camera pixel size of 3.34 µm.5 µm vs 3.34 µm
  • Better viewfinder type
    Sigma SD1 Merrill uses a more advanced viewfinder than the average camera (optical vs none).
    Pentaprism optical viewfinder.
    What it is: The type of viewfinder the camera uses to frame the shot, such as optical, electronic, hybrid, or none.
    When it matters: When you strongly prefer the clarity of an optical finder, the preview benefits of an electronic one, or no viewfinder at all.

    Importance: MEDIUM

    Sigma SD1 Merrill uses a more advanced viewfinder than the average camera (optical vs none).optical vs none
  • 480 mAh larger battery capacity
    Sigma SD1 Merrill has a higher battery capacity than the average camera (1,600 mAh vs 1,120 mAh). The average camera has a battery capacity of 1,120 mAh.
    What it is: The amount of electric charge the battery can hold, measured in milliampere-hours (mAh).
    When it matters: When you want a general idea of how large the battery is physically.

    Importance: LOW

    Good value: At least 1,500 mAh

    Sigma SD1 Merrill has a higher battery capacity than the average camera (1,600 mAh vs 1,120 mAh). The average camera has a battery capacity of 1,120 mAh.1600 mAh vs 1120 mAh
  • Lossless compressed RAW
    Sigma SD1 Merrill supports lossless compressed RAW, while the average camera does not.
    Lossless RAW capture is supported.
    What it is: Support for RAW image files compressed without losing image data, reducing file size while preserving editing latitude.
    When it matters: When you want RAW editing flexibility but also need to keep file sizes more manageable.

    Importance: LOW

    Sigma SD1 Merrill supports lossless compressed RAW, while the average camera does not.
  • 21.8% higher magnification
    Sigma SD1 Merrill has a higher viewfinder magnification than the average camera (1x vs 0.78x). The average camera has a viewfinder magnification of 0.78x.
    What it is: The apparent size of the image seen through the viewfinder relative to the real scene.
    When it matters: When you want a larger, more immersive view through the finder for easier composition and manual focus.

    Importance: LOW

    Sigma SD1 Merrill has a higher viewfinder magnification than the average camera (1x vs 0.78x). The average camera has a viewfinder magnification of 0.78x.0.95 x vs 0.78 x
  • 4.17x more popular
    Sigma SD1 Merrill is more popular than the average camera (4.17 vs 1.000).
    What it is: An indicator based on the number of reviews received by the camera.
    When it matters: When you want to see which cameras attract the most buyer attention and review activity.
    Sigma SD1 Merrill is more popular than the average camera (4.17 vs 1.000).4.17 vs 1
  • Better viewfinder type
    Sigma SD1 Merrill uses a more advanced viewfinder than the average camera (optical vs none).
  • 21.8% higher magnification
    Sigma SD1 Merrill has a higher viewfinder magnification than the average camera (1x vs 0.78x). The average camera has a viewfinder magnification of 0.78x.
  • 29.8 MP higher resolution on the main camera
    Sigma SD1 Merrill has a higher main camera resolution than the average camera (46 MP vs 16.2 MP). The average camera has a main camera resolution of 16.2 MP.
  • 1.66 µm larger main-camera pixels
    Sigma SD1 Merrill has a higher main camera pixel size than the average camera (5 µm vs 3.34 µm). The average camera has a main camera pixel size of 3.34 µm.
  • Phase-detect AF for photos
    Sigma SD1 Merrill supports phase-detection autofocus for photos, the average camera does not.
  • Lossless compressed RAW
    Sigma SD1 Merrill supports lossless compressed RAW, while the average camera does not.
  • 90 s longer maximum exposure
    Sigma SD1 Merrill supports a longer maximum exposure than the average camera (120 s vs 30 s). The average camera supports a longest shutter speed of 30 s.
  • 480 mAh larger battery capacity
    Sigma SD1 Merrill has a higher battery capacity than the average camera (1,600 mAh vs 1,120 mAh). The average camera has a battery capacity of 1,120 mAh.

Total
Overall
Display & Design
Sensor & Image
Photo Features
Battery & Power
  • 2x heavier
    Sigma SD1 Merrill is heavier than the average camera (790 g vs 395 g). The average camera weighs 395 g.
  • 2 % lower viewfinder coverage
    Sigma SD1 Merrill has a lower viewfinder coverage than the average camera (98% vs 100%). The average camera has viewfinder coverage of 100%.
  • 39.6 mm taller body
    Sigma SD1 Merrill is taller than the average camera (113.5 mm vs 73.9 mm). The average camera has a height of 73.9 mm.
  • 25.6 mm wider
    Sigma SD1 Merrill is wider than the average camera (145.5 mm vs 119.9 mm). The average camera has a width of 119.9 mm.
  • 34 mm thicker
    Sigma SD1 Merrill is thicker than the average camera (80 mm vs 46 mm). The average camera has a thickness of 46 mm.
  • Lacks HDR mode
    Sigma SD1 Merrill does not support HDR mode, the average camera does. 55.1% of cameras include HDR mode.
  • Lower RAW bit depth
    Sigma SD1 Merrill supports lower RAW bit depth than the average camera (12-bit vs 14-bit). The average camera supports 14-bit RAW capture.
  • 19 points lower DxOMark sensor score
    Sigma SD1 Merrill has a lower DxOMark sensor score than the average camera (54 points vs 73 points). The average camera has a DxOMark sensor score of 73 points.
  • 18,900 lower expanded ISO
    Sigma SD1 Merrill has a lower expanded ISO than the average camera (6,400 vs 25,300). The average camera reaches an expanded ISO of 25,300.
  • 1 older
    Sigma SD1 Merrill is older than the average camera (2012 vs 2013). The average camera was released in 2013.
    March 2012
  • No AF tracking
    Sigma SD1 Merrill does not support AF tracking, the average camera does. 88% of cameras support it.
  • Worse low-light autofocus
    Sigma SD1 Merrill has a worse low-light AF sensitivity than the average camera (-1 EV vs -4 EV). The average camera reaches a low-light AF sensitivity of -4 EV.
  • 12 fewer AF points
    Sigma SD1 Merrill has fewer focus points than the average camera (11 vs 23). The average camera offers 23 focus points.
  • 0.7 fps slower mechanical burst
    Sigma SD1 Merrill has a slower mechanical burst rate than the average camera (5 fps vs 5.7 fps). The average camera shoots at 5.7 fps.
  • 2 fewer microphones
    Sigma SD1 Merrill has fewer microphones than the average camera (0 vs 2). The average camera has 2 microphones.
  • No continuous video AF
    Sigma SD1 Merrill does not support continuous autofocus in video, the average camera does.
    no video recording
  • 180 shots shorter battery life
    Sigma SD1 Merrill has shorter battery life than the average camera (150 shots vs 330 shots). The average camera delivers 330 shots per charge.
  • No HDMI output
    Sigma SD1 Merrill does not support HDMI output, the average camera does. 78.7% of cameras support HDMI output.
  • No AF tracking
    Sigma SD1 Merrill does not support AF tracking, the average camera does. 88% of cameras support it.
    What it is: An autofocus mode that continuously follows a moving subject to keep it sharp during shooting.
    When it matters: When your subjects move unpredictably and you need the camera to keep focus on them automatically.

    Importance: MEDIUM

    Sigma SD1 Merrill does not support AF tracking, the average camera does. 88% of cameras support it.
  • Worse low-light autofocus
    Sigma SD1 Merrill has a worse low-light AF sensitivity than the average camera (-1 EV vs -4 EV). The average camera reaches a low-light AF sensitivity of -4 EV.
    What it is: The lowest light level at which the autofocus system is rated to work reliably.
    When it matters: When you shoot in dim environments and need autofocus that still locks confidently after dark.

    Importance: MEDIUM

    Sigma SD1 Merrill has a worse low-light AF sensitivity than the average camera (-1 EV vs -4 EV). The average camera reaches a low-light AF sensitivity of -4 EV.-1 vs -4
  • 2x heavier
    Sigma SD1 Merrill is heavier than the average camera (790 g vs 395 g). The average camera weighs 395 g.
    What it is: The total weight of the camera body, which affects comfort while carrying and shooting.
    When it matters: When you carry the camera all day, travel often, or prefer a lighter setup.

    Importance: MEDIUM

    Good value: 500 g or less

    Sigma SD1 Merrill is heavier than the average camera (790 g vs 395 g). The average camera weighs 395 g.790 g vs 395 g
  • 2 fewer microphones
    Sigma SD1 Merrill has fewer microphones than the average camera (0 vs 2). The average camera has 2 microphones.
    What it is: The number of built-in microphones used to capture audio while recording video.
    When it matters: More built-in microphones can capture broader, clearer sound when you record without an external microphone.

    Importance: LOW

    Good value: At least 2 microphones

    Sigma SD1 Merrill has fewer microphones than the average camera (0 vs 2). The average camera has 2 microphones.0 vs 2
  • Lacks HDR mode
    Sigma SD1 Merrill does not support HDR mode, the average camera does. 55.1% of cameras include HDR mode.
    What it is: High Dynamic Range mode for photos, which combines multiple exposures to retain detail in both shadows and highlights.
    When it matters: When you take photos in high-contrast scenes, like a bright sky against a dark landscape.

    Importance: LOW

    Sigma SD1 Merrill does not support HDR mode, the average camera does. 55.1% of cameras include HDR mode.
  • No continuous video AF
    Sigma SD1 Merrill does not support continuous autofocus in video, the average camera does.
    no video recording
    What it is: The ability of the camera to keep adjusting focus automatically while video recording is in progress.
    When it matters: When you film while subjects or camera distance keep changing and manual refocusing is impractical.

    Importance: LOW

    Sigma SD1 Merrill does not support continuous autofocus in video, the average camera does.
  • Lower RAW bit depth
    Sigma SD1 Merrill supports lower RAW bit depth than the average camera (12-bit vs 14-bit). The average camera supports 14-bit RAW capture.
    What it is: The number of bits used to encode color and tonal information in RAW files captured by the camera.
    When it matters: When you heavily edit RAW photos and want more tonal information for aggressive adjustments.

    Importance: MEDIUM

    Good value: At least 14-bit

    Sigma SD1 Merrill supports lower RAW bit depth than the average camera (12-bit vs 14-bit). The average camera supports 14-bit RAW capture.12-bit vs 14-bit
  • 180 shots shorter battery life
    Sigma SD1 Merrill has shorter battery life than the average camera (150 shots vs 330 shots). The average camera delivers 330 shots per charge.
    What it is: The official battery endurance estimate measured under CIPA test methodology, usually expressed in shots per charge.
    When it matters: When you need realistic expectations for how many shots you can take before carrying a spare battery.

    Importance: MEDIUM

    Good value: At least 400 shots

    Sigma SD1 Merrill has shorter battery life than the average camera (150 shots vs 330 shots). The average camera delivers 330 shots per charge.150 shots vs 330 shots
Total
Overall
Display & Design
Sensor & Image
Photo Features
Video & Audio
Battery & Power
Connectivity & Storage

Graphic comparison of Sigma SD1 Merrill and

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Third-party reviews

United Kingdom
amazon
3.8
12 Reviews
United States
Amazon_logo.png
3.8
12 Reviews

(Reviews last updated: July 2026)

What customers like about Sigma SD1 Merrill?

  • Exceptional image quality and detail at low ISO settings (100–400) due to the Foveon X3 sensor
  • Rich, realistic, and subtle color rendition that avoids RGB signal interpolation
  • Solid, professional-grade build quality with a magnesium alloy, weather-sealed body
  • Excellent ergonomics with a deep, comfortable grip and well-laid-out manual controls
  • Distinctive 'film-like' look and texture in RAW files that appeals to fine-art and landscape photographers
  • Traditional SLR experience focused purely on composition and exposure without modern gimmicks

What customers dislike about Sigma SD1 Merrill?

  • Significantly poor performance at high ISO settings (800 and above) with heavy noise and color desaturation
  • Extremely slow file write times to CF cards, which can temporarily lock access to certain menu functions
  • Lack of standard modern features like live view and movie/video recording mode
  • Low-resolution 460k-dot rear LCD screen makes it difficult to verify focus and sharpness in the field
  • Proprietary Sigma SA lens mount limits lens choices compared to mainstream systems
  • Short battery life despite the use of large batteries
  • Autofocus system (11-point) is dated and can struggle with speed and accuracy compared to competitors

Expert reviews

D
dpreview.com
10/04/2012
Sigma SD1 / SD1 Merrill In-depth Review - DPReview

The Sigma SD1 is a specialized DSLR featuring a 15.3MP x 3 Foveon X3 sensor that delivers exceptional, high-detail image quality at low ISO settings, housed in a robust, weather-sealed magnesium alloy body. It is praised for its comfortable handling, large optical viewfinder, and straightforward physical controls. However, the camera is limited by painfully slow file write times,...Read more

T
tobiashjorth.com
24/11/2012
Sigma SD1 Merrill review - Tobias Hjorth Nature Photographer

The Sigma SD1 Merrill review by Tobias Hjorth highlights a camera that offers unmatched base-ISO image quality packed inside a rugged, well-built body. The core strength of the camera lies in its unique Foveon X3 sensor technology, which captures full red, green, and blue color data at every single pixel location, eliminating the need for an aliasing filter. At low ISO settings,...Read more

V
vieribottazzini.com
08/06/2013
SIGMA SD1 MERRILL FIRST LOOK REVIEW Would you like to find more technical sensor comparisons for this specific model?

The Sigma SD1 Merrill first look review by professional landscape photographer Vieri Bottazzini highlights the camera as a highly specialised, "spartan" tool built for maximum image quality under specific working conditions. The camera's standout feature is its Foveon sensor, which delivers exceptional sharpness, impressive micro-contrast, and an artifact-free resolution comparable...Read more

A
archive.org
23/06/2012
Amateur Photographer: Sigma SD1 Merrill Test

The Canon EOS-1D X marks a significant evolution in professional DSLRs by replacing both the high-speed EOS-1D Mark IV and the high-resolution EOS-1Ds Mark III with a singular, versatile flagship body. Designed with a heavy focus on sports and action photography, it transitions from Canon's previous APS-H crop sensor layout to a newly designed 18.1-million-pixel full-frame CMOS...Read more

E
ephotozine.com
13/02/2012
Sigma SD1 Merrill Review - ePHOTOzine

The ePHOTOzine review describes the Sigma SD1 Merrill as a robust, metal-clad DSLR featuring a comfortable, secure handgrip, despite its angular design and lack of a top-plate LCD. Key advantages include its solid construction and a functional external button layout paired with a Quick Set menu for efficient operation. Conversely, the review highlights significant drawbacks,...Read more

U
uk.pcmag.com
16/05/2014
Sigma SD1 Merrill - PCMag UK

The Sigma SD1 Merrill is a highly unconventional digital SLR featuring a unique 46-megapixel APS-C Foveon X3 sensor. Unlike traditional Bayer sensors, the Foveon architecture layers three separate 15-megapixel tiers—each dedicated to capturing red, green, or blue light. This design eliminates the need for an anti-alias filter, preventing the moiré effect while rendering...Read more

T
techradar.com
13/08/2012
Sigma SD1 Merrill review | TechRadar

The TechRadar review evaluates the Sigma SD1 Merrill, a rebranded version of the original 46-megapixel SD1 DSLR. Originally launched at an unattainable price point of £6,200 / $9,700, Sigma slashed the price tag a year later to a more practical £1,840 / $1,900. The camera's main selling point is its unique Foveon X3 image sensor, which features three individual layers embedded in...Read more

D
digitalkamera.de
06/12/2011
Review: Sigma SD1

The digitalkamera.de review of the Sigma SD1 praises its professional, robust magnesium alloy body, which is fully weather-sealed and designed for excellent handling. While tailored for studio use with accessible battery compartments, the camera's high cost and heavy weight are noted. Conversely, the review criticizes the sluggish autofocus, poor JPEG image quality, and severe noise...Read more

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D
digitalkamera.de
01/01/2012
DigitalPhoto Sigma SD1 Review

The digitalkamera.de review highlights the Sigma SD1 as a puristic, rugged DSLR designed strictly for high-end photography, featuring a 46-megapixel Foveon X3 sensor that delivers exceptional micro-contrast, sharp, and detailed images free from color moiré. Pros include this unique color reproduction, while major cons center on its slow processing speeds, heavy weight, lack of...Read more

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C
connect-living.de
30/09/2011
Sigma SD1 - RAW Test Against Canon and Nikon", "Sigma SD1 - Facing Canon and Nikon in a RAW Shootout

The Sigma SD1 features a unique APS-C Foveon X3 sensor that utilizes three distinct physical layers to capture full, un-interpolated red, green, and blue data per pixel, producing raw image quality at ISO 100 that rivals high-resolution full-frame cameras. In terms of performance pros, this sensor layout excels at rendering complex, high-contrast coloured textures, leading to...Read more

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P
photoinfos.com
01/04/2012
Sigma SD1 Merrill - Photo Information", "Sigma SD1 Merrill - Photo Info

The Sigma SD1 Merrill is a digital SLR camera featuring a unique 14.75-megapixel APS-C Foveon X3 sensor, which processes full colour data across three layered receptor levels rather than using a standard Bayer-matrix layout. The primary advantage of this camera is its exceptional image quality at low ISO settings (between ISO 100 and 400), delivering spectacular detail, sharp...Read more

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Q
qvak.de
08/04/2015
Sigma SD1 Merrill – Review - Qvak

Thomas Gade's review on Qvak highlights the Sigma SD1 Merrill's exceptional image clarity, which is heavily attributed to its unique Foveon sensor. Although Sigma markets the DSLR as having an effective 46-megapixel resolution, the generated files actually measure 4704 x 3136 pixels, translating to a more conventional 14.75 megapixels. The primary pro of the camera is its impressive...Read more

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P
passionfoveon.forumactif.org
19/02/2018
2 days of testing with the SD1 Merrill + 105mm macro", "Sigma SD1 Merrill: a spectacular price drop", "Sigma SD1 Merrill: the Foveon finally affordabl...

The user’s review highlights the combo of the Sigma SD1 Merrill camera body and the older, non-stabilised Sigma 105mm f/2.8 Macro lens as a powerful tool capable of delivering superlative image detail and vibrant Foveon colors. The combination excels in solid build quality and provides a faster, more responsive shooting experience compared to the DP Merrill compact cameras....Read more

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L
lesnumeriques.com
08/02/2012
Sigma SD1 Merrill: A tribute to Dick Merrill, 3.5 times cheaper

The Les Numériques article focuses on the massive price drop and relaunch of Sigma's flagship DSLR, renamed the Sigma SD1 Merrill as a tribute to the late Foveon engineer Dick Merrill. Originally released at an elite, uncompetitive price of €7,000, Sigma and Foveon successfully reduced manufacturing costs over a year to reintroduce the exact same camera at around €2,000. To appease...Read more

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D
digitalcamaralens.com
08/02/2012
SIGMA SD1 - Digital Camera Lens

The Sigma SD1 is an interchangeable-lens DSLR camera equipped with a 46-megapixel APS-C X3 Foveon direct image sensor (4,800×3,200×3 layers) and a dual TRUE II image processor. Built for durability, the camera features a rugged magnesium body with a splash-proof design, a dust protector, and a bright pentaprism viewfinder offering 98% coverage. It utilizes a 77-segment evaluative...Read more

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N
nadir.it
ND
SIGMA SD1 MERRILL - In-depth test

The Sigma SD1 Merrill is a rugged, weather-sealed APS-C DSLR built around a unique 15.36-megapixel three-layer Foveon X3 sensor, which operates similarly to traditional film rather than a standard Bayer matrix. Its primary strength lies in exceptional image clarity, vibrant colour saturation, and clean details at ISO 100, yielding output that rivals full-frame systems or even...Read more

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M
mpb.com
No date provided
Second-hand Sigma SD1 Merrill - MPB

The Sigma SD1 Merrill is a specialized DSLR utilizing an APS-C Foveon X3 CMOS sensor to deliver exceptional, medium-format-like detail and color accuracy at low ISOs. Key advantages include a durable, weather-sealed magnesium-alloy body with superior ergonomics and, because it avoids standard color interpolation, produces images free of typical artifacts. Conversely, the camera is...Read more

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D
digifotopro.nl
17/08/2016
Sigma sd Quattro review (includes comparisons to the SD1 Merrill)

The DIGIFOTO Pro review highlights the Sigma sd Quattro as a highly unconventional, specialized camera that departs from mainstream designs to target enthusiast photographers. Its core strength lies in its 39-megapixel equivalent APS-C Foveon X3 multi-layer sensor, which lacks a low-pass filter and records independent red, green, and blue data vertically per pixel. Under controlled...Read more

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F
focus-review.com
06/09/2012
Review of the Sigma 105mm f/2.8 EX DG OS HSM Macro lens

The ⁠Focus Review highlights the Sigma 105 mm f/2.8 EX DG OS HSM Macro as a top-performing optic, specifically evaluating its performance on the APS-C sensor of a Sigma SD1 Merrill camera. The review praises the lens for its exceptional image quality, noting high resolution even at wide-open aperture (f/2.8), uniform center-to-corner sharpness, and virtually unnoticeable distortion...Read more

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